Saturday's meeting at Fairyhouse has been called off due an unraceable track, while Sunday's meeting in Naas is subject to a morning inspection.
A first inspection ahead of the card, which was set to feature the Grade Three Race Displays Mares Novice Hurdle, was carried out at 3pm on Friday, with officials deciding to take another look at 7.30 this morning.
An Irish Horseracing Regulatory Board statement said: "Following an inspection this morning at Fairyhouse, parts of the track were found to be unfit for racing after 12mm of rain overnight and the meeting scheduled to take place today (Saturday) has been cancelled.
"Horse Racing Ireland has announced that this meeting will now take place on Monday, February 8."
Sunday's meeting at Naas is also under threat, with another classy fixture subject to an inspection on Saturday afternoon.
"Following a track inspection this afternoon, the track at Naas remains heavy and fit for racing.
"After consultation with Met Éireann, there will be another inspection at 7.30am tomorrow (Sunday) morning due to the threat of further rain."
